Date: Tue, 29 May 2018 18:42:03 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 222377] ZFS ABD wasteful... Message-ID: <bug-222377-3630-QPhX9JvvZb@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-222377-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-222377-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222377 --- Comment #8 from Sean Chittenden <seanc@FreeBSD.org> --- And to follow up with my own comment from https://reviews.freebsd.org/D12396#293994 It's worth pointing out that we eventually abandoned this change and went back to a 4K ABD chunk size. So while1K may have been more memory efficient in the short term, it ended up being suboptimal in the long run. I'm abandoning this issue and hoping no one repeats our lessons. https://github.com/joyent/illumos-joyent/commit/2bd6ca8c3cc70becca5f99bbf557b70ac3dfdaf7 https://smartos.org/bugview/OS-6387 https://smartos.org/bugview/OS-6363 Allocator-native chunk sizes will probably always be better with regards to long-term memory fragmentation. -- You are receiving this mail because: You are the assignee for the bug.
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